Vania



Nov. 16,1926. 1,606306 J. W. SMITH MACHINE FOR ROLLING METALLIC DISKSFiled May 24, 1923 9 Sheets Sheet l INVENTOR.

. I BY ohm/N MIT/7' MTN Eji ORNEY Nov. 16 1926. 1,606,906

J. w. 'SMJTH MACHINE FOR ROLLING METALLIC DISKS Filed May 24, 1925 9Sheets'-Shet 2 INVENTOR. JoH/v N Nov. 16 192s. 1,606,906

J. W. SMITH MACHINE FOR ROLLING METALLIC DISKS Filed May 24. 1923 9sheets sheet 3 3.2 .62 a I 51 M 0 $4 46 M g; 4} II o 45 as, v 4.9

I M 'J I filO \1 I k INVENTOR.

ZMMHN M51111! memos Nov. 16 1926.

J. W. SMITH MACHINE FOR ROLLING METALLIC DISKS Filed May 24, 1923 9SheetS-Shet 4- [N V EN TOR.

Nov. 16 192 s. emme J. W. SMITH MACKINE FOR ROLLING METALLIC DISKS FiledMay 24, 1923 9 Sheets-Sheet 5 Iii I 29 1N VEN TOR.

A ORNEY Nov; 16 1926.

J. w. SMITH MACHINE FOR ROLLING METALLIC DISKS 9 Sheets-shat 6 Filed May24, 1923 II .97 f 8] INVENTOR.

Jan/v N nnw By W TORNEY h/ TAIL-"s5."-v

Nov. 16 1926. 1,606,906

- J. w. SMITH v MACHINE FOR ROLLING METALLIC DISKS Filed May 24, 192: 9Sheets-Shed v Nov. 16 1926.

J. w. SMITH MACHINE FOR ROLLING METALLIC DISKS a .7 8 y i. N m M .0. z am m w WW @a 9 w 3 MM, y m w m NOV" 9 V J. w. SMITH MACHINE FORYROLLINGMETALLIC nxsxs Filed May 24, 1923 9 hi' gh t 9 WEN, MM 7 i w k f Ejm W'-1 N VEN TOR.

Jon/v M (FM/TH k/H'NESSP- I ATTORNEY.

te l F".

JGEN W. SMITH, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T BUDD VJ'I-IEEL(LOIVIFANY, OF PEZLADELPHIA, PENNSYLVANIA, A CORPORATION OF LPENNSYL-VANIA.

MACHINE FOB ROLLING- METALLIC DISKS.

Application. filed May 24, 1923. Serial No. 641,240.

My invention relates to improvements in machines for rolling metallicdisks and has to do, more particularly, withdisk rolling machines of thetype described and claimed in my co-pending applications, Serial No.408,231, process of and apparatus for rolling metallic disks, filedSeptember 4, 1920, and Serial No. 414,848, machines for rolling disks,filed October 5, 1920.

in my pending applications, I have de scribed and claimed machines forrolling metallic disks in which a blank is mounted upon a rotating tableand acted upon by rolls which are traversed radially of the blank as thetable rotates. These rolls are of such form that they have a combinedspinning and rolling action :upon the blank, which reduces it inthickness'and increases its diameter, bringing the finished disk 'to anydesired cross-section, depending upon the configuration of the table 'orsupport for the blank. The principal object of my present inventionis'to improve upon the machines of these pending applications so as toprovide machines for'rolling metallic disks which will be particularlyefficient and capable of operation at comparatively high One object ofmy present invention is to' provide improved means for raising andlowering the rolls with respect to the table and for traversingtherollsfradially with respect to the axis of the table. Aleading object ofmy present invention is to pro-' vide simpler and more effectivemechanism for moving the rolls with respect to the table.

A further object of my present invention is to provide means forejecting a finished disk from and feeding a blank to the machine withoutstopping it, so that the operation of the machine may be madesubstantially continuous.

Further objects, and objects relating to details and economies ofconstruction and operation, will definitely appear from the detaileddescription to follow. In one instance, I accomplish. the purposes of myinvention by the devices and means described in the followingspecification. My invention is clearly defined and pointed out in theappended claims. A structure constituting a preferred embodiment of myinvention is illustrated in the accompanying drawings, forming a part ofthis specification, in which:

Fig. 1 is a view in front elevation of a machine embodying my invention,the blank placing and ejecting means not being shown.

Fig. 2 isa view of the machine in side elevation.

Fig. 3 is a vertical, sectional view through the machine, taken ontheline 3 3 of Fig. 2.

Fig. 4 is an enlarged view, partly in section and partly in sideelevation, of the table supporting the blank, the rolls which act on theblank and the roll carriers. 7 Fig. 5 is a view inside elevation of thecams and connected parts causing radial movements of the rolls withrespect to the axis of the blank.

Fig. 6 is a view of the parts shown in Fig. 5, looking from the left ofsaid figure.

Fig. 7 is a view in side elevation of the cam and connections forraising and lowering the rolls with respect to the table on which theblank is supported.

Fig. 8 is'a view otthe parts shown in Fi 7, looking at them from theleft of F ig.

Fig. 9 is a horizontal, sectional view through the machine, taken on aline just above the table and showing the feeding and ejecting device.

Fig. 10 is a detail, sectional view of such device, taken on tl e line1010'ot Fig. 9.

Fig. 11 is a detail. sectional vi w, taken on the line 11-11 of Fig. 9.

Fig. 12 is a detail, sectional view, taken on the line 12-12 of Fig. 1.

Fig. 13 is a detail, sectional view, taken on the line 1313 of Fig. 2,showing the means for driving the cam shat-t.

Fig. 14 is a detail, sectional view taken on the line 14-14 of Fig. 4.

' Figs. 15 to 19, inclusive, are sectional views through the table and ablank thereon, showing successive stages in the opera tion of ejecting arolled disk and feeding a blank to the table.

Figs. and 21 are enlarged, sectional views on lines 20I2O of Fig. 1 and2121 or" Fig, 18, respectively, and

Fig. 22 is a sectional view through the feeding device, taken on line2222 of Fig. 9.

' axis of the table.

In the drawings, the same reference numerals refer to the same partsthroughout the several'views and the sectional views are taken lookingin the direction of the arrows at the ends of the sectionlines.

In my said pending applications, Serial Nos. 408,231, and 4,848, theblank is supported-on a rotating table and acted upon by rolls whichengage the blank under pressure and are moved radially of 'the blank,

from the center outwardly, while the table rotates. Means are provldedfor separating the rolls and the table to permit the removal of therolled di'sk and the insertion of a blank to be rolled. In myapplication, Se-

" nism for causing such movements of the rolls at the proper intervals.The rolls are carried bya part of the machine whichis capable ofvertical movement with respect to the table on which the blank issupported. This movable part of the machine carries suitably drivencamswhich not only cause this part and the rolls to rise and fall at regularintervals, but also cause radial movements of the rolls with respect tothe These cams are such that the movementof the rolls from the centeroutwardly of the table maytake' place at a slower rate than the returnmovement of the rolls toward the central position, the latter movementtaking place while the rolls are raised from the table to permit achange of blanks. This cam mechanism permits the vertical and radialmovements of the rolls to follow each other in a predetermined sequence,so as to establish a cycle of operation in which theseseveral movementsfollow one after the other and may takeplace at different rates ofspeed.This permits me to make the mechanism particularly speedy and eflicientsince return movements of the rolls may be made considerably faster thanthe working movements.

The vertically-movable carriage, on which the rolls are mounted, carriesa suitably driven cam shaft on which a plurality of One of these camsacts cams are fastened. upon a rocker arm which transmits rockingmovement to a pair of bell-cranklevers fulcrumed at fixed points in theframe of the machine and connected by links'to the movable carriage, sothat these bell-crank levers raise and lower the carriage and exert apowerfultoggle action to force the carriage toward the table and causethe rolls to bear with considerable pressure upon the blank.

One or more of the cams on the cam shaft act upon a rocker arm which isconnected to a pair of bell-crank levers fulcrumed at opposite-sides ofthe movable carriage and connected to roll-carriers which slidetransversely of the carriage and which carry the 'rolls acting upon theblanks. The cams on the cam shaft may-be so arranged with respect to.each other that the rolls are, first,

'moved downward toward the blank, then swing around both a vertical anda horiz'ontal axis, the end of said arm'being adapt: ed to support ablank to be rolled. This arm is so mounted that a blank supported uponit may be swung into working position on the turningtable. A blank issupported and held in centered position by this device and insertedbetween the rolled disk and the table so that it serves to lift therolled disk from the centering device of the table and shove it from themachine by the same movement which brings the new blank into alignmentwith the centering device. The feeding device may then be withdrawn,

leaving the blank in proper position on the table. This arm constitutesa carrier upon which a blank is'mounted by the operator. When the blankin the machine has been rolled, the operator swings this arm so that theblank upon it is inserted between the rolled disk and the table andlifts the rolled disk from the table so that it clears the centerin'gdevice. 7 A part on the feeding device contacts with the periphery ofthe rolled disk and further movement of the arm ejects therolled diskfrom the machine and brings the fresh blank to proper position for: en-

gagement withthe centering device of the table. When the blank isproperly engaged with such centering device, the arm maybe withdrawn,leaving the blank in working position on the table, ready to be engagedby the rolls. This feature of my present invention consists injprovidinga carrier for the blank which may be moved into such relation with therotating table as to eject a rolled disk therefrom and deposit the blankin working position upon the table.

The machine illustrated in the accompanying drawings constitutes oneembodiment of my present invention which has been found to besatisfactory and which I believe, at

the present time, to be preferred. Referring to the numbered parts ofthe drawing, this machine comprises a base, 10, on which 1s journaledthe rotating .table, 11, said table being rotated by means of the shaft,13, carrying the pulley, 12, and connected by belt, 1 1, with the motor,15. The upper face, 16, of the table, 11, forms the support for the.blank and its configuration determines the cross-section of the rolleddisk. This particular machine is for rolling tapered disks whichdecrease in thickness to ward the periphery and, therefore, the face,16, is slightly conical and concave. At the center of the table,there isa cup-shaped recess, 17, within which is located a centering stud, 13,which extends somewhat above the face, 16, of the table and which isaxially disposed with respect to the table.

l1 rom the four corners of the base, 10, thecolumns, 19, Xtend upwardly.Vertical tie-rods, 20, extend through the base, 10, and the columns, 19,and for a considerable distance above the upper ends of the columns,constituting guide rods upon which the vertically-movable carriage ismounted. These tie-rods, 20, are rigidly fastened to the base, 10, dueto the engagement of the collars, 22, lined on such rods, with internalshoulders in the columns, 19, and the engagement of the nuts, 21,threaded on the lower ends of the rods, 20, with shoulders on the base.The rods, 20, extend vertically upward through bores, 23, provided inthe verticallymovable carriage, 2 1, and guide said carriage in itsvertical movement. The upper end of each column,-19, is split, at 25,and internally threaded and receives an eXternally-threaded sleeve, 27,which may be adjusted in the upper end of said column. and locked inadjusted position by means of the bolts, 26, which clamp the splitportions of the column around said sleeves. Thev tie rods, 20, passfreely through these adjustable sleeves, 27, and the upper ends of suchsleeves form stops to limit the downward movement of the carriage, 24.By adjust ing these sleeves in the upper ends of the columns, 19, thelowermost position of the rolls with respect to the table, 11, may bedetermined, thus determining the thickness of the disk which is rolled.The sleeves, 27, may be provided with a series of markings, 23, so thatthe position of the rolls may be determined accurately and changed fromtime to time. The upper ends of the tierods, 20, extend through thecross rods, or bars, 29, and are rigidly secured thereto by nuts, 30 and30, screwed on the ends of the tie rods and engaging the upper and lowersurfaces of such cross bars, respectively.v

tions of such cross bars are cylindrical, so as to form bearing shaftsfor certain moving parts of the roll-actuating mechanism.

In the lower surface of the carriage, 24, there is a transverseguide-way, 31, which receives the sliding roll-carriers, 32'. Thesecarriers, 32, are each provided with ears, 122, extending from oppositesides thereof, and having slots, 123, within which the felt rollers,121, are journaled on the pins, 120. These rollers work within theguide-way, 31, and bear upon the upper and lower surfaces of saidguide-way in an oil trough, 121, provided therein, to lubricate the phosphor-bronze strip, 124,,secured to the upper wall of the guide-way, 31,and forming a track on which the roll-carriers, 32, slide, when shiftingthe rolls radially of the blank, under pressure, during'the workingstroke of the machine. There are two roll-carriers, 32, slidablysupported in the guideway, 31. Each of these roll-carriers has thespaced depending arms, 33 and as, between which a roll, 35, is mountedso as to revolve. This roll, 35, has a conical, lea-ding face, 36, and acylindrical rolling surface, 37, and it is fastened to a shaft, 38,which is journaled in bearings carried by the arms, 33 and 34,respectively. On the inner end of the shaft, 38, there'is mounted thecylindrical roller bearing, 39, which is held on the end of the shaft bythe retaining member, 40. The member 40, engages the inner race of thebearing and is secured to the shaft, 38, by the screw, 41. The rollerbearing, 39, is housed within a cup-shaped recess formed in the arm, 33,and it is retained in such recess by the plate, 412, which extends overthe end of'the bearing and the shaft, 32, and is bolted to the arm, 33.A cup-shaped member, 13, surrounds the other end of the shaft, 38, andis received in a seat formed for it in the arm, 3%, of the roll-carrier.This cupshaped member receives a ball bearing, 4A, mounted on the shaft,33. The ball bearing is held in place on the shaft by the nut, 15,screwed thereon. The cup-shaped member, 43, is retained in position inthe arm, 341, by an end cap, 16, which is bolted to the cup shapedmember, 13, and also to the arm, 3 1, of the roll-carrier, 32. This endcap, 46, has a depending lug, 4:7, to which a link, -18, is pivoted. Theopposite-end of said link is pivotally connected, at 50, to a pin, 49,which is adjustably carried at the end of one arm of a bell-crank lever,51. In order to provioe for the adjustment of the pin, 49, withreference to the bell-crank arm, so as to vary the radial movement ofthe roll, the pin, a9, is threaded and nuts, 52 and 53, screwed on thethreaded pin engage opposite faces of the bell-crank arm. It is evidentthat the movement of the rolls, 35, may be varied by adjusting thesenuts on the pin, 49.

The cross rods, 29, are extended to one ELU side of the machine, asshown in Fi 2, and support a platform, 54, on which an electric motor,55, is mounted as shown in Fig. l. The driving pulley, 56, mounted onthe armature shaft of said motor, is connected by the belt, 57, with thepulley, 58, which is journaled on a support, 66, carried by the movablecarriage, 24:. A male clutch member, 59, turns with the shaft, 62, and.coop-- crates with a fixed brake member, 60, or

with a female clutch member turning withwhich are fastened to themovable carriage,

24. Springs, 127, surround the lower portions of these rods, 12-5, andare compressed between the nuts, 128, screwed on the lower ends of therods, and the plates, 126. These springs help to counterbalance theweight of the vertically-movable carriage, as, and the parts carriedthereby, so that less work is required of the cams and connected partsin order to raise therolls, 35, from the table, 11.

The bell-crank levers, 51, to which reference has already been made, arejournaled on pins, 68, carriedby cars, 69, projecting from the sides ofthe vertically-movable carriage, 24. One arm of each of these bellcranks extends downwardly and is adjustably connected, in the mannerwhich we have described, to one of the two roll carriers. The other armsof the bell-crank levers, 51, extend inwardly of the machine,substantially as shown in Fig. 1, and are pivotally connected to link,70. (See Fig. 5.) The upper end of the link, 70, is pivotally connectedto the lower end of a connecting rod, 71, the upper end of which ispivotally connected, at 72, to one arm, 73, of a rocker, 74, journaledon a cross shaft, 75, carried by the support, 66. One arm, 73, of thisrocker member carries the roller, 78, and the opposite arm, 76, carriesa roller, 77. The roller, 77, is engaged by a cam, 7 9, fast on theshaft, 67, and the roller, 78, is engaged by a. cam, 80, which is alsofast on the shaft, 67. [is the cam shaft, 67, ro tates, the rockermember, 7 is caused to rock back and forth'on tl e shaft, 75, atpredetermined intervals, thus imparting to the bell-crank levers, 51,the movements necessary to move the rolls in and out, radially of thetable, at the proper intervals.

As the cam shaft, 67, rotates in the direction of the arrow, (see Fig.5) the cam, 80, engaging roller, 78, gradually rocks the the oppositedirection restoring the rolls to the central position which they occupyin Fig. 1. The cams, 79 and'80, are so ar-' ranged with respect to eachother that, when-the tip of cam, 79, is in engagement with roller, 77,the cam, 80, is just ready to act on roller, 7 8, so that the outwardmovement of the rolls takes place substantially at the end of theirreturn movement. The

came, 79 and 80, are so shaped that cam, 7 9,-

acts during a little more than a quarter of a revolution of the camshaft, 67, and cam, 80, acts during about two-thirds of a revd l'utionof the shaft, so that the return movement of the rolls is effected inabout half the time required for the outward movement. 7

G11 the cross rods, 29, the knuckle members, 81 and 82, are journaled.Each of these members has a cylindrical hub through which thecorresponding cross rod, 29, extends. Near the ends of such hubs areprovidedthe depending ears, 83, one pairof such ears being adjacent eachend of each hub. Links, 8 1, pivotally connected to the movablecarriage, 24:,near the four corners thereof, have their upper ends'pivotally connected to the ears of said knuckle members. Said earsandlinks are so con; nected as to form toggle linkages connecting themovable carriage, 2a, and the fixed cross rods, 29. Arms, 81 and 82,extend upwardly from these knuckle members and a connecting link, 87, ispivotally connected at '85 with the upper end of the arm, 81,

and, at 86, to the upper end of the arm, 82.

This equalizes the motion of the knuckle members 011 opposite sides ofthe machine.

An adjustable link, 89, is pivotally connect ed at 88 to the arm, 82,and the upper end of this link is pivotally connected, at 96. to

the rocker member, 90, which is journaled on the cross shaft, 91,carried by the support, 66. ()ne arm, 92, of the rocker member, 90,carries a roller, 93, while the other arm, 94, carries a roller 95.These rollers engage a cam, 97, which is fixed on the cam shaft, 67.

As the cam shaft revolves, the cam, 97, imparts a rocking motion to themember, 90, and such rocking motion is transmitted to the knucklemembers, 81 and 82. The ears, 83, of such members form, with the links 81, toggles. In Fig. 7, the toggles are shown in closed position, inwhich the car-- riage, 24, is forced downwardly and the rolls, 35, areforced against the blank on the table, 11, under great pressure. As thecam, 97, revolves in the direction of the arrow, (see Fig. 7) the rockermember, 90, will be held in the position which it occu pies so long asthe curved edge, 97, of the cam, contacts with the roller, 95. Thiskeeps the toggle linkages straight and the carriage is held in its lowerposition under great pressure. while the rolls are given a radial motionby the mechanism previously described. After the curved edge, 97 ,movesout of engagement with the roller, 95, the rotation of the cam shaft,67, brings the surface, 97 into engagement with the roller, 93. Thisrocks the member, 90, in a direction to break the toggle linkages and toraise the carriage, 24, from the table, 11. -When the curved surface,97, is engaged by the roller, 93, the carriage is held in such elevatedposition until the roller, 95, engages the edge, 97", of the cam. Thistakes place at the instant when the roller, 93, moves out of engagementwith the curved edge 97, and causes the movement of the toggle linkagesto closed position so that the carriage, 24, is forced toward thetableunder great pressure.

I have provided a feeding device which cooperates withthe rotatingtable, 11, to eject a rolled disk from such table and to deposit a newblank in working position upon the table, while the latter continues torotate. In this embodiment of my invention (see Fig. 22), the feedingdevice consists of an arm, 102, pivoted, at 101, to a bracket, 100,projecting from the base, 10, of the machine. A block, 104, is journaledon a vertical pin, 108, at the end of the arm, 102, and this blockcarries a horizontal stud, 105, on which is journaled a block, 106,which is fastened to a lever, 107. A blank-supporting plate, 108, isfastened to the forward end of this lever and is shaped as shown indotted lines in Fig. 9, having a concave recess, 108, at its end, to fitthe centering stud, 18, of the table, 11. This plate is adapted to support a blank to be rolled, as shown in Fig. 10. A strip, 109, isfastened to the upper surface of the lever, 107 and has its end 110 bentdownwardly toward the plate, 108, so as to yieldingly engage the uppersurface of a blank supported on said plate. The blank supported by saidplate is held centered with respect thereto by means of an arm, 112,which is pivoted, at 113, to a bracket carried by the lever, 107, andwhich carries a rod, 114, at its free end, having anfenlarged collar,116, at its lower end, adapted to fit in a central opening formed in theblank. This rod has a handle, 115, and it is held yieldingly in positionby a spring, 111, which engages the member, 112, at the hinge joint,113. A handle, 117 is fastened to the lever,107,by means of which thedevice may be tilted and swung from one side tothe other, as may benecessary in ejecting a finished disk and feeding a new blank to themachine. A strap, 118, which is fastened to the arm, 102, carries twoset screws, 119, which contact with the lever, 107, and limit itstilting n'rovement about the stud, 105. A spring, 129, interposedbetween the plate, 118, and the lever, 107, serves to helpcounterbalance the weight of the blank supported in the device so as tomake it easier to manipulate. A set screw, 130, carried by the arm, 102,engages one of the columns, 19, of the machine and limits the swingingmovement of the device, about the pivot, 101, toward the machine. Thisset screw may be so set that the swinging movement will be stopped whenthe rod, 114, is in line with the centering stud, 18, in which positionthe new blank may be discharged from the device and deposited upon therotating table, 11.

The operation of this machine will be apparent from the foregoingdescription of the parts thereof. When the rolls, 35, are raised fromthe table, 11, the blank, 13, is placed upon the table with thecentering stud, 18, positioned in a central opening formed in the blank.This may be done by means of the feeding device which we have described,or the machine may be stopped when the rolls are in elevated positionand the blank placed upon the table by hand. The table, 11, rotatescontinuously, being driven by the motor, 15. Of course, suitable clutchmeans may be provided between the motor and the table for controllingthe operation of the latter. The mechanism for actuating the rolls, toraise and lower them and move them radially of the table, is driven bythe motor, 55. Such mechanism is actuated by the cam shaft, 67, which iscarried by the movable carriage, 24, and rises and falls with thecarriage. The belt connection, 57, between the motor, 55, and pulley,58, permits of this movement of the cam shaft, 67, and the pulley, 58,with respect to the motor which is supported on the fixed cross rods,29. A clutch is provided between the motor and the cam shaft, 07, sothat the operation of the cam shaft may be controlled by the operator.As the cam shaft, 67, rotates, the cams, 79, and 97 rotate with it andact upon the rocker members, 74 and 90. The action of the cams uponthese rocker members has already been described. Assuming that the partsare in the position shown in Figs. 1, 4 and 5, the cam,80, first acts onthe rocker member, 74, to gradually move the rolls, 35, radially outwardwith respect to the table, 11. When the rolls have reached the limit oftheir outward move ment, there is 'a'slight dwell, during which v, in)

1 neeaeoo the'rolls do not have any radial movement and, at that time,the cam, 97, begins to act on the rocker member, 90, swinging theknuckle members, 81 and 82, so as to break the toggles formed by thecars, 83, and links, 84, and lifting the vertically-movable carriage,24. hen this upward movement of the carriage commences, the cam, 79,begins to act on the roller, 78, of the rocker member, 7 1, and movesthe rolls, 35, to their starting position adjacent the axis ofthe table.The curved e lge, 97, of the cam, 97,

riage, 2 1, toward the table, 11.

acts on the roller, 93, of the rocker member, 90, so as to hold thecarriage in raised positionfor an interval long enough to permit theinsertion of a new blank on the table. At

'the end of this interval, the edge, 97", acts upon the roller, 95,swinging the rocker member, 90, to such position as to straighten outthe toggle linkages, formed by the cars, 83, and. the links, 8 1, andforcing the cam lVhen the carriage has thus been forced down to bringthe rolls into operating contact with the blank on. the table, thecurved edge, 97, of the cam engages the roller, 95, and holds the rockermember in such position that these toggle linkages must remain straightand the carriage is held clamped in such position as to press the rollsagainst the blank. At the end of the radial outward movement of therolls, this pressure is released by the cam, the carriage is movedupward and the cycle of operations is repeated.

While the rolls, 35, are operating upon a blank placed upon the table,11, to increase its diameter and reduce its thickness by a combinedspinning and rolling action, the operator places a new blank upon. thefeeding device, which has been swung to one side. The blank, B, restsupon the supporting plate, 108, and extends between said plate and theend 110 of strip 109, which'yieldingly engages the upper surface of theblank.

The blank is so located upon the plate that the notch, 108, at the endof the supporting plate, is in line with an opening formed in the centerof the blank. After the blank has been placed in proper position on thesupporting plate, the arm, 112, is swung down so that the collar,.116,on the lower end of the rod, 114, enters the central opening in theblank and cooperates with the notched end, 108, of the supporting plateto hold the blank centered. The collar, 116, is cut away. at 11.6, onthe side opposite from the end of the lever, 107, for a purpose whichwill presently appear. The blank is positioned upon the supporting plateofthe feeding device in the manner thus described, while the machine isoperating to roll out a blank which has previously been placed upon thetable. As soon as the rolling operation has terminated and the rolls, 35rise rom. the e, 1. he p rat swings, the

feeding device'carrying a new blank toward the table to eject the rolleddisk, A, and deposit the blank, B, in working position upon the rotatingtable. The operation of ejecting a rolled disk and feeding a blank tothe table is shown very clearly in Figs. 15 to 19, inclusive. Fig. 15shows the rotating table, 11, with a rolled disk, A, thereon.

Fig. 16 illustrates the beginning of the operation of ejecting therolled disk. The edge of a blank, B, mounted on the feeding device, isinserted between the table, 11, and the disk, A, and may be shovedbetween these two parts until the rod, 114, of the feeding device,engages the periphery of the disk, A. With the blank, B, in thisposition, the op erator may pry the disk, A, from the table by tiltingthe lever, 107, about the horizontal stud, 105. This serves to lift thedisk, A, so that the central opening in such disk clears the centeringstud, 18, of the table. The operator continues to move-the feedingdevice so as to bring the central opening of the blank, B, into linewith the centering stud,

18, of the table and, since the periphery of the rolled disk, A, isengaged by the red, 11 1, or the collar, 116, carried by it, this movement of the feeding device forces the rolled disk, A, from the table anddischarges it from the opposite side thereof, at the same time that theblank, 13, is centered with respect to the table. This operation isclearly illustratedin Fig. 17. WVhen the blank, has been brought tocentered position, the notch, 108, of the supporting plate, 108, engagesthe centering stud, 18, of the table and by tilting the lever, 107, theblank is allowed to drop to working position on the table and in thismovement the end of thecentering stud, 18, engages the notch, 116,formed in the collar, 116, of the rod, 114, and lifts the collar, 116,from the central opening of the in Figs. 18 and 20. The operator nowwithdraws the feeding devicewhile the centering stud, 18, engages in thecentral opening in the blank to hold it centered on the table. Thesupporting plate, 108, is moved from between. the blank, B, and thetable, 11, and the blank, 13, drops to working position upon the table.The collar, 116, being cut away, at 116, at the side opposite the lever,107, permit-s this withdrawal movement. At the same time, the cutawayportion, 116, of the collar, 116, engages with the centering stud, 18,when the blank is moved to centered po sition and helps the operator toguide the device andcenter the blank properly. 19 shows the blank inworking position upon the table after the withdrawal of the feedingdevice. The operation of ejecting the rolled disk and feeding the. newblank to the table can be readily performed by what is practically onecontinuous movement of the feedill easily and quickly so that the rolleddisk can be ejected and a new blank fed to the table during the intervalin which the cam mechanism holds the rolls, 35, in elevated position;The table, 11, may rotate continuously during this feeding operation andit is not necessary to stop the rotation of the cam shaft, 67, since anoperator may easily discharge the roller disk and feed new blank to thetable during the interval in which the rolls are held raised in thenormal operation of the cam mechanism.

It will be noted that the feeding device is pivot-ed on av pin,-103,carried by the arm, 102, and that the arm, 102, is also pivoted, at 101,on a vertical axis. In the usual movements of the feeding device, itswings around the axis, 101. In case the rolls, 35, should descend andengage the blank before the feeding device has been withdrawn, the action of the rolls upon the blank would tend to turn the feeding devicearound the axis, 103, so that it would be swung away from the tablewithout doing any harm. The block, 10 1, which carries the stud, 105,on. which the lever,-107, of the feeding device is pivoted, isfrictionally connected with the arm, 102, so that, ordinarily, it doesnot turn around the axis, 103, although it may do so in case extrastress is put upon it. This frictional connection is effected by formingthe arm, 102, of two spaced straps, 102, between the outer ends of whichthe block, 104, is located. The bolt providing the axis, 108, is carriedby the outer ends of these straps and pass-es through the block, 104, asshown in Fig. 22. This bolt, or an additional bolt (not shown), connectsthe two straps adjacent the block, 10%, and draws them toward each otherso that they engage the block, 104, frictionally, and tend to hold itagainst turning movement on .the axis, 103. This arrangement acts as asafety device in case the rolls should descend before the feeding devicehas been withdrawn.

The machine which I have described herein may be'used for rolling diskseither hot or cold. Of course the movements of the rolls will be variedso as to regulate the amount of reduction in thickness of the blank,which will be different when the blank is heated before rolling, fromwhat it would be w on operating upon a cold blank. This machine .liay beused for tapering a blank of uniform thickness or it may be used with ablank of tapering cross section which it is desired to roll in order toeffect some reduction in thickness and increase in diameter and in orderto improve the surface of the blank. I have found that the surfaces oftapered disks will be very much improved, so that they, take paint orenamel more satisfactorily, if they are rolled in this machine so as tocause a flow of metal and reduction in thickness and increase in rollsradially of the blank, toward and .41

ruined sequence and at predetermined int rother cross-sections and theformation of the table may be changed without departing from myinvention. If desired, the cams may be so constructed thatthe radialmovement of the rolls stops before the rolls reach the periphery of theblank so that the peripheral portion of the blank is not acted upon bythe machine except as it is bent into a flaring fiange by the action ofthe rolls upon the central portion of the blank. Such changes in thecams to vary theradial movement of the rolls or the periods during whichthe rolls are raised and lowered, may be made without departing from myinvention.

The disk rolling machine which is illu trated in the, drawings anddescribed specritically in this specification, constitutes oneembodiment of the invention set fortl and claimed herein. There are manyVariations and modifications of the construction disclosed which willappear to those skilled in this art and which may be made withoutdeparting from the spirit of my invention. I desire, therefore, to claimmy invention broadly, as indicated by the appended claims.

Having thus described my invention, what I claim as new and useful anddesire to so cure by Letters Patent is:

- 2. A machine of the class described comprising a rotating support fora blank to be rolled, a pair of rolls adapted to operate on a blank onsaid support, and cam mechanism for raising, lowering and movr eachother, in a predetermined sequence and at predetermined intervals.

3. A machine of the class described comprising arotating support for theblank to be rolled, a pair of rolls adapted to operate on a'blank onsaid support, cam mech anism for raising and lowering said rolls withrespect to said support, and cam mech anism for moving said rollsradially of the blank.

4;. A machine of the class described C0211- prising a rotating supportfor the blank to be rolled, a pair of rolls adapted to operate on ablank upon said support, a suitably driven cam shaft, and earns carriedby said shaft and connected to raise, lower and move said rolls radiallyof the blank in a predetervals.

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5. A machine of the class described comprising a rotating support for ablank to be rolled, a pair of rolls adapted to operate on a blank onsaid support, a suitably driven cam shaft, a cam on said shaft connectedto move said rolls away from each other, radially of the blank, a secondcam on said shaft connected to move said rolls toward each other,radially of the blank, and a third cam on said shaft connected to raiseand lower said rolls with respect to the support.

6. A machine of the class described comprising a rotating table, acarriage verticah 'ly movable with respect to said table, a roll carriedby said carriage and adapted to be moved transversely thereof, cammechanism for raising and lowerin said carriage, and cam mechanism formoving said roll trans versely of the carriage.

7. A machine of the class described comprising a blank support and aradially traversing blank working roll having a relative movement ofapproach and separation to present the work to and remove it from theaction of the roll, and mechanism for causing the relative approach andseparation movement and the traverse movement of the roll deriving thepower to operate it from a common prime mover.

8. A machine of the class described comprising a rotating table adaptedto support a blank to be rolled, a carriage vertically movable withrespect to said table, a roll carried by said carriage and adapted tooperate on a blank supported on said table, and cam mechanism carried bysaid carriage and connected to raise and lower the carriage and to movesaid roll radially of the table in a predetermined sequence and atpredetermined intervals.

9. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movable with respect to said table, a roll carried by saidcarriage and adapted to operate on the blank supported on said table, amotor supported by said frame, and cam mechanism movable with saidcarriage and driven by said motor, said mechanism being connected toraise and lower the carriage and move the roll radially of the table ina predetermined sequence and at predetermined intervals.

10. A; machine of the class described comprisinga frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movable with respect to said table, a roll carried by saidcarriage and adapted to operate on a blank supported on said table, acam shaft journaled on said carriage, cams on said shaft connected toraise and lower the carriage and to move the roll radially of the table,and a" motor mounted on the frame and having driving connections withsaid cam shaft.

1,coe,eos

11. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movable with respect to the table, a roll carried by saidcarriage and adapted to operate on a blank supported on said table, acam shaft journaled on saidcarriage, earns on said shaft connected toraise and lower the carriage and move the roll radially of the table, amotor mounted on the frame, and driving connections between said motorand the cam shaft including a clutch and a driving belt permittingvertical movement of the shaft with respect to the motor. I V

12. A machine of the class described comprising a rotatably mountedtable adapted to support a blank to be rolled, a carriage verticallymovable with respect to the table, a pair of rolls carried by saidcarriage and at'a pted to operate on a blank supported on said table, asupport carried by said carriage, a cam shaft journaled in said support,connections between said cam shaft and the carriage and rolls forraising and lowering i the carriage and moving the rolls radially of thetable, and means for driving said cam shaft.

13. A. machine of the class described comprising a rotatably mountedtable adapted" said carriage for raising and lowering the carriage withrespect to the table.

s. A machine of the class described comprising a rotatably mounted tableadapted to support a blank to'be rolled, a carriage verlOO ticallymovable with respect to the table, a

pair of rolls carried by said carriage and adapted to operate on a blanksupported on said table, and cam means for raising and lowering saidcarriage with respect to the table, said cam means being such as to holdthe carriage in raised and lowered positions for predeterminedintervals. I

15. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movable with respect to the table,a roll carried by saidcarriage ant adapted to operate on a blank supported on the table, andmeans for raising and'lowering said carriage including a toggle linkage,connecting said carriage and a fixed point on the frame, and means onsaid carriage for actuating said toggle linkage.

16. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blankto be rolled, a carriagevertically movable with respect to the table, a pair of'rolls carried bysaid carriageand-adapted tooperate ona blank supported on the table, apair of knuckle members journaled on the frame, arms on said knucklemembers, links connecting said arms with the carriage, and means forrocking said knuckle members on their pivots.

17. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movable with respect to the table, a pair of rolls carried bysaid canriage and adapted to operate on a blank sup ported on the table,a pair of knuckle members journaled on the frame, downwardlyextendingears on said knuckle members, links connecting said ears and thecarriage, upwardly-extending arms onsaid knuckle members, meansconnecting said upwardlyextending arms whereby said knuckle members areforced to turn in unison, and means for rocking said knuckle members ontheir pivots.

18. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movablewith respect to the table, a pair of rolls carried bysaid carriage and adapted to operate on a blank supported on the table,a pair of knuckle members journaled on the frame, connections betweensaid knuckle members and the carriage, a rocker member journaled on thecarriage, a cam acting on said rocker member, and connections betweensaid rocker member and the knuckle members.

19. A machine of the class descrlbed comprising a frame, a rotatablymounted table adapted to support a blank to be rolled,

a carriage vertically movable with respect to the'table,a pair of rollscarried by said carriage and adapted to operate on a blank supported onthe table, a pair of knuckle members journaled'on the frame, each ofsaid knuckle members having a pair of spaced ears, links connecting saidears with the four corners of the carriage, and means for rocking saidknuckle members in unison on their pivots. 7

20. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blank to be rolled, a

' carriage vertically movable with respect to the table, a pair of rollscarried by said carriage and adapted to operate on a blank supported onthe table, a pair of knuckle members journaledon the frame, connectionsbetween said knuckle members and the carrlage, a rockermember pivoted onthe carriage, a cam shaft journaled on the carriage,

, operate on a blank supported on the table,

and cam means carried by the carriage for moving said rolls transverselythereof.

22. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blankto be rolled, a carriagevertically movable with respect to said table, a pair of rolls carriedby said carriage and horizontally movable with respect thereto,saidrolls being adapted to operate on a blank supported on'the table, asuitably driven cam shaft journaled on the carriagaand a pair of camscarried by said cam shaft and connected to move the rolls horizontallywith respect to the carriage, one of said cams moving the'rolls in onedirection and the other in the opposite direction.

23. A machine of theclass described com prising a frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movable with respect to said table, a pair of rolls carriedby said carriage and horizontally movable with respect thereto, saidrolls being adapted to operate on a blank supported on the table, asuitably driven cam shaft journaled on the carriage, a rocker memberpivoted on the carriage, a pair of camson said shaft acting on saidrocker member, and connections between said rocker member and the rollsfor moving the rolls horizontally with respect to the carriage. I

24. A machine of the class described comprising a frame, a rotatablymounted table adapted to support a blank to be rolled, a carriagevertically movable with respect to said table, a pair of rollscarried bysaid carriage and horizontally movable with respect thereto, said rollsbeing adapted to operate on a blank supported-on the table,

a pair of bell crank levers pivoted on the carriage, one arm of each ofsaid levers be mg connected to one of said rolls, a rocker memberpivoted on the carriage and connected to the other arms of said bellcrank levers, a camshaft journaled on said carriage, and a pair of camson said shaft acting on said rocker member.

25. A machine of the class described comprising a rotatablymounted tableadapted to support a blank to be rolled, a carriage vertically movablewith respect to said table, a pair of roll carriers slidably mounted onsaid carriage so as to move horizontally with respect thereto, a rollmounted in each of said carriers-and adapted to operate on a blanksupported on the table, a pair of bell crank levers pivoted on thecarriage, "an adjustable connection between one arm of each of saidlevers and one of the roll carriers,.and cam-actuated means for rockingsaid bell crank levers on their pivots.

26. A machine of the class described comprising a rotatably mountedtable adapted tov support a blank to be rolled, a vertically movablecarriage having a horizontal guide- Way in its lower face provided withhorizon tal tracks at the sides thereof, a roll-carrier provided withrollers running on said tracks, a roll rotatably mounted on said carrierand adapted to operate on a blanksupported on the table, means forr-aisingand lowering' the carriage, and means for shifting therollecarrier horizontally along said guide- W'ay. v I

97. A machine of the class. described conr prising a 'rotatably mountedtable, adapted to support a blank to be rolled, a vertically movable.carriage having a. horizontal guide- Way' inits lower face extendingtransversely thereof, said guide-way having upper and lower tracks atthe. sides. thereof, a roll carrier having ears provided with slots,rollers, positioned in said slots and journaled on the carrier, saidrollers; being adaptedto engage the, upper or lower tracks, a rollrotatably mounted in said carrier and: adapted to operate on a blanksupported on the table, means for raising and lowering the carriage, andmeans for shifting the carrier along said I guideway 28-, A machine ofthe class described 0on1- prising a rotatably' mounted table adapted to;support a blank to be rolled, a carriage movable with respect to, said:table, a rollcarrier slidably mounted on said carriage for movementtransversely thereof, said earrierhaving a pair of spaced dependingportions, a, shaft 'journaled in said port-ions of the carrier, a rolllinedon, said shaft, and retating between said portions, said roll beingadapted tooperate on a blank supp rted on the table, an end cap fastenedto one of said portions, means tor shitting said carrier transverselyof; the carriage,"connected to said end cap, and means for. raising andloweringsaid carriage 29-. A machine of the class described compr si g'a rotatablymounted table. adapted to support blank t be rol ed, acarriage movable with respect to;- said-table, a rollcarrier slidablymounted on said carriage for movement transversely thereoii, saidcarrier aving a pair or spaced depending porti ns, a nzp shaped memberfitted the outermost at said-1 portions, anti friction bearings carriedbysaid cup-shaped member and the other depending portion of the.carrier, a shaft journaled in; said; anti-frictron. bearings, a roll;carried by said shaft and adapted to operate on; a blank supported onthetable, an end cap belted to said cup-shaped member and thecorresponding p rt on r the ca rier, and. means, connected to said endcap, for shifting said carrier transversely of the carriage.

30., A machine of the class described comprising a rotatably mountedtable adapted to support a blank to be rolled, a carriage movable, withrespect to said table, a rollcarrier slidably mounted on said carriagefor movement transversely thereof, said car:-

rier having a pair of spaced dependingpore. trons, a shattt ournalcd insaid 13OItlOIlS,-2l-

ii) V roll mounted; on; said shaft and rotating between such portions,said roll being adapted Y to operate on a blank supported on the table,

an, end cap; fastened to: the outermost of said depending portions ofthe carrier and hava projecting lug, and means connected to said lug forshifting said carrier transversely oi the carriage,

31.v A machine of the class describedwnrprising a rotatably mountedtable adapted to support a blank to be rolled, a carriage verticallymovable with respect to the table, a roll; carried by said carriage andadapted to operate on a blank supported on the table,

means or raising and lowering the carriage, I?

and spring means; acting on the carriage and partially supporting theweight. thereof: in raised position.

32-. A machine of the: class described comprising a frame, a rotatablymounted table adaptecljto support a blank to be rolled,verticalguide-rods carri d by said frame, a carriage vertically mowable;on said guid rods, bars secured to fixed part or the frame and e tendingthrough pertions, of

the movable carriage, and: springscom pressed. between fixed. parts onsaid bars; and said portions of theycarrrage 8.3-, A, machine of. theclass described com- I prising a base a retatably mounted. table adaptedto support, a blank'to be rolled, guide-rodsextending vertically fromsaid base, cross rods secured to and connecting the, upper GHQ 18 0iSaid guide -rods, a carriage vertically movable on said guide-rods, aroll carried by said carriage and adapted to operate on a blanksupported, on; the-table, a

motor supportedby said cross rods, and

1 ice knuckle members jou-rnaled on said cross rods and connected tosmidi vcarriage, ant means; supported by said carriage-1 for rockingcsaid knuckle members, on thei beari gs.

35. A machine of the class described comprising a base, a rotatablymounted table adapted to support a blank to be rolled, guide-rodsextending vertically from said base, cross rods secured to andconnecting the upper ends of said guide-rods, a carriage verticallymovable on said guide-rods, a roll carried by said carriage and adaptedto operate on a blank supported on the table, knuckle members journaledon said cross rods and connected to said carriage, a motor supported bysaid cross rods, cam mechanism supported by said carriage and actuatedby said motor, and connections between said cam mechanism and knucklemembers for rocking the latter on their bearings.

36. A machine of the class described comprising a rotating support for ablank to be rolled, a roll adapted to operate on a blank on saidsupport, and cam mechanism for causing a relative movement of approachand separation between said support and roll for causing a relativemovement of the support and roll in a direction radially of the blank,all in a predetermined sequence and at predetermined intervals.

37. A machine of the class described comprising a support for a blank tobe rolled and a cooperating roll, said roll and blank support beingadapted to execute a com plete cycle of movements relative to each otherconsisting of an approach movement,

a traverse movement radially of the blank, a separation movement, and aretraverse movement, and means for causing said approach, traverse,separation and retraverse movements to succeed each other automatically.

38. A machine of the class described comprising a support for a blank tobe rolled and a cooperating roll, said roll and blank support beingadapted to execute a complete cycle of movements relative to each otherconsisting of an approach movement, a traverse movement radially of theblank, a separation movement and a retraverse movement, means forcausing said movements to succeed each other automatically, and meansfor repeating the cycle without attention on the part of the operator.

39, A machine of the class described com prising a rotating support forthe blank, a carriage supported above said support for vertical movementwith respect thereto, a pair of roll carriers slidably mounted forhorizontal movement in said carriage, a roll carried by each of saidcarriers and adapted to engage a blank on said support, means for movingthe carriage toward and from said support at predetermined intervals,and means for moving said carriers substantially horizontally withrespect to said support.

In testimony whereof, I afiix my signature.

JOHN W. SMITH.

